雅思考试阅读部分练习试题解析

本文小编针对雅思考试阅读部分练习试题相关信息，给广大考生做了详细的说明。为了能够让大家更全面的掌握这方面信息，小编在下文中针对雅思考试阅读部分练习试题做了简要的说明。关于这类信息，小编详细总结如下：

1. The failure of a high-profile cholesterol drug has thrown a spotlight on the complicated machinery that regulates cholesterol levels. But many researchers remain confident that drugs to boost levels of ’good’ cholesterol are still one of the most promising means to combat spiralling heart disease.

2. Drug company Pfizer announced on 2 December that it was cancelling all clinical trials of torcetrapib， a drug designed to raise heart-protective high-density lipoproteins (HDLs)。 In a trial of 15000 patients， a safety board found that more people died or suffered cardiovascular problems after taking the drug plus a cholesterol-lowering statin than those in a control group who took the statin alone.

3. The news came as a kick in the teeth to many cardiologists because earlier tests in animals and people suggested it would lower rates of cardiovascular disease. “There have been no red flags to my knowledge，” says John Chapman， a specialist in lipoproteins and atherosclerosis at the National Institute for Health and Medical Research (INSERM) in Paris who has also studied torcetrapib. “This cancellation came as a complete shock.”

4. Torcetrapib is one of the most advanced of a new breed of drugs designed to raise levels of HDLs， which ferry cholesterol out of artery-clogging plaques to the liver for removal from the body. Specifically， torcetrapib blocks a protein called cholesterol ester transfer protein (CETP)， which normally transfers the cholesterol from high-density lipoproteins to low density， plaque-promoting ones. Statins， in contrast， mainly work by lowering the ’bad’ low-density lipoproteins.

Under pressure

5. Researchers are now trying to work out why and how the drug backfired， something that will not become clear until the clinical details are released by Pfizer. One hint lies in evidence from earlier trials that it slightly raises blood pressure in some patients. It was thought that this mild problem would be offset by the heart benefits of the drug. But it is possible that it actually proved fatal in some patients who already suffered high blood pressure. If blood pressure is the explanation， it would actually be good news for drug developers because it suggests that the problems are specific to this compound. Other prototype drugs that are being developed to block CETP work in a slightly different way and might not suffer the same downfall.

6. But it is also possible that the whole idea of blocking CETP is flawed， says Moti Kashyap， who directs atherosclerosis research at the VA Medical Center in Long Beach， California. When HDLs excrete cholesterol in the liver， they actually rely on LDLs for part of this process. So inhibiting CETP， which prevents the transfer of cholesterol from HDL to LDL， might actually cause an abnormal and irreversible accumulation of cholesterol in the body. “You’re blocking a physiologic mechanism to eliminate cholesterol and effectively constipating the pathway，” says Kashyap.

Going up

7. Most researchers remain confident that elevating high density lipoproteins levels by one means or another is one of the best routes for helping heart disease patients. But HDLs are complex and not entirely understood. One approved drug， called niacin， is known to both raise HDL and reduce cardiovascular risk but also causes an unpleasant sensation of heat and tingling. Researchers are exploring whether they can bypass this side effect and whether niacin can lower disease risk more than statins alone. Scientists are also working on several other means to bump up high-density lipoproteins by， for example， introducing synthetic HDLs. “The only thing we know is dead in the water is torcetrapib， not the whole idea of raising HDL，” says Michael Miller， director of preventive cardiology at the University of Maryland Medical Center， Baltimore.

(613 words nature)

Questions 1-7

This passage has 7 paragraphs 1-7.

Choose the correct heading for each paragraph from the list of headings below.

Write the correct number i-ix in boxes 1-7 on your answer sheet.

List of Headings

i. How does torcetrapib work­

ii. Contradictory result prior to the current trial

iii. One failure may possibly bring about future success

iv. The failure doesn’t lead to total loss of confidence

v. It is the right route to follow

vi. Why it’s stopped

vii. They may combine and theoretically produce ideal result

viii. What’s wrong with the drug

ix. It might be wrong at the first place

Example answer

Paragraph 1 iv

1. Paragraph 2

2. Paragraph 3

3. Paragraph 4

4. Paragraph 5

5. Paragraph 6

6. Paragraph 7

Questions 7-13

Match torcetrapib，HDLs，statin and CETP with their functions (Questions 8-13)……

Write the correct letter A， B， C or D in boxes 8-13 on your answer sheet.

NB You may use any letter more than once.

7.It has been administered to over 10，000 subjects in a clinical trial.

8.It could help rid human body of cholesterol.

9.Researchers are yet to find more about it.

10. It was used to reduce the level of cholesterol.

11. According to Kashyap， it might lead to unwanted result if it’s blocked.

12. It produced contradictory results in different trials.

13. It could inhibit LDLs.

List of choices

A. Torcetrapic

B. HDLS

C. Statin

D. CETP

Suggested Answers and Explanations

1. vi

2. ii

3. vii 本段介绍了torcetrapib和statin的治病原理，但是同时短语“in contrast”与之前第二段后半段的内容呼应，暗示了这两种药在理论上能相辅相成，是理想的搭配。第一个选项无法涵盖整段意义，故选择i是错误的。

4. iii 本段分析了可能导致torcetrapibl临床试验失败的原因，后半段指出如果以上推测正确，那么未来的药物可借鉴这个试验，设法避免torcetrapib的缺陷，研制出有效的药物。viii选项无法涵盖后半段的意思。

5. ix 见首句。

6. v

7. A 见第二段。题目中administer一词意为“用药”，subject一词为“实验对象”之意。

8. B 见第四段“… to raise levels of HDLs， which ferry cholesterol out of artery- clogging plaques to the liver for removal from the body.”即HDLs的作用最终是将 choleserol清除出人体：“… for removal from the body”。

9. B 见第四段“But HDLs are complex and not entirely understood.”

10. C 见第二段“… plus a cholesterol-lowering statin”，即statin是可以降低cholesterol的。

11. D 见第六段 “So inhibiting CETP， … might actually cause an abnormal and irreversible accumulation of cholesterol in the body.

12. A 见第三段。

13. C 见第四段“Statins， in contrast， mainly work by lowering the ’bad’ low-density lipoproteins

雅思考试阅读部分练习试题的详细内容，小编给各位正在备考此类考试的考生们提供了全面的解析，大家通过对文章内容的了解，相信会从中找到一些备考的方向和要点。希望大家能够尽快进入到备考最佳状态中。

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【专业资历】
新通教育南京分公司资深课程顾问， 教育行业多年以上从业经验，对雅思托福考试有很深入的了解，在和学生的交谈中可以准确的发现学生现阶段雅思托福的问题所在，并可以有针对性的提出比较适合的课程方案，在规定的时间达到所需要的雅思托福分数，其中有较多高分学子，得到很多家长和学生的好评。
【成功案例】
范娇，这位学生在2013年初的时候参加的雅思考试，取得了听力7.0分 阅读7.5分 写作7.0分 口语6.5分，总分7.0的好成绩。之所以能取得这个比较好的成绩，学生努力的成分是不可以忽略的，但也有很大一部分得益于南京新通教育的语言老师。给她系统的安排有针对性的课程，提高学生的薄弱项目，保证学生较强的科目并且在原有的基础上获得突破。尤其是听力和写作方面。范娇在之前的2012年中的时候参加过一次雅思考试得到听力6.0分，阅读6.5分，写作6.0分，口语6分，总分6分的成绩，短短的半年时间，学生提高了1分，平时范娇同学和老师互动较好，没有课的时间基本都在自习室进行自习，不懂的问题及时和老师沟通，掌握了比较好的学习和做题方法。

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